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Relational Data Model

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In the previous blog post, we covered Data Modeling. We have seen that data modeling is really important before jumping into predictive modeling.  In this article, we will cover the Relational Data Model (RDM). Let's start from the very basics, relational means anything which is linked with some other thing. This link is called "Relationship". In RDM or RM there are major three types of relationship cardinalities (also called Multiplicities or Cardianalities): 1. One to one 2. One to many 3. Many to many We can understand these with the help of a few simple examples;  One to one: One department has one manager. One to many: One class has many students. Many to many: Many teachers can teach many students. Okay, so we have got an abstract overview of the term " Relational ", now the next thing is " Data ", data covers everything, anything... And finally, " Model " means something in the form of a template, design, a kind of blueprint.  To store...
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Data Engineering Tools

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   Data is a new oil. To channelize this data we need proper pipelines. These pipelines are mostly called ETL or data pipelines.  There are various tools out there to work out these Extract, Transform, and Load (ETL) operations.  Some of the scripting tools are:  - Python - SQL and NoSQL Apache provides a wide range of products that can be used as Data Engineering tools.  Some of the amazing apache DE services comprised of; - Hadoop - Spark - Kafka - Cassandra - Hive In addition, some cool DE tools are: - Tableau - Talend - MapReduce These DE tools provide a way to manage the data pipelines in a more effective, efficient, and better way.  Almost every Data-Oriented company in the corporate sector is highly dependent upon these technologies. They are leveraging many of the above-mentioned mechanisms for promising Data Services and Architecture. That's it for today. Hope you have enjoyed this article. If you want to know more about data or software relat...
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1-Machine Learning : Start...

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John went to the cafeteria 10 times at 1:00 P.M. on 10 Fridays, each time the cafeteria was closed at that particular time. John decided not to go to cafe at 1:00 P.M. on Friday because the cafe will be closed.  But wait! How did John know that the cafe will  also be closed on next Friday at 1:00 P.M.??? Yes, you are absolutely right.  "John Learned from his Experience that the Task of going to the cafeteria at 1:00 P.M. on Fridays resulted in waste of time, since the cafe was closed on each Friday, so it will Perform the same on the next Friday." In the above scenario, John learned something so we can call it " John Learning ". Similarly, if we replace John with some sort of Machine, that can learn from the Experience or from the History about how the tasks were performed in the past given certain situation. Such that the Machine will perform the same if the same task happen again in near future. Then this will be called as Machine Learning. To mak...
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A Survey of the Final Year University Students

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I don't know what should be the title of this blog post, but let's call it " A survey of the final year university students ". Pretty long title, huh? Okay, let me tell you about this survey... The story behind this thing: Well, one day I thought about writing a post on Facebook to ask people about their sentiments and reviews regarding the final year of university life, then another thought knocked my head to write a full blog post on this topic. Then I disseminated a google form for this purpose. The google form was saying: "Hello, final semester people! I thought to collect reviews of 2020 graduates specifically of NUST and other IT universities. I am planning to add these to my blog post. Please take a few seconds to fill this form, thank you." So that was a brief story behind this whole thing, Now let's have a look at the most awaited questions and the corresponding responses...  Question#1:  Do you feel like a better hu...
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Applications of Data Engineering

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In a previous blog post about data engineering, we went through several many concepts related to data engineering such as data modeling, and then we went through different types of databases, for example, relational databases and we also got a glimpse of relational as well as NoSQL databases. And in today's blog post we will be writing about data engineer applications. Which are basically the use cases of data engineering 1st let's see what data engineering applications mean; so basically when we have data and we have engineered it then there are several things that we can do with that data and these things that we can do with processed data are the use cases of the data engineering. For example: If we have filled our containers with the data then it's not of any good use if it is not clean and well-formed. If your data is well-formed and if there are no logical mistakes, missing values, and garbage then we can easily perform the use cases and applications of data enginee...
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Programming android applications

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2 USEFUL PROGRAMMING ANDROID APPLICATIONS P rogramming is an art but it needs a lot of practice, and those who have to travel a lot find it very difficult to practice programming, so there is a need of portable mobile applications to get better programming skills, so here I would like to share 2 apps that are useful in this regard: SoloLearn This application is recommended to me by one of my friends, I am very excited to have this application and it makes my learning so fun and interesting. So without any delay just get this free amazing application. HTML Code Play Web development is the most fun task to do, and  HTML Code Play  makes this task easier and faster then ever.  so dear programmers, why are you waiting? go and get these applications on your android mobile phones, and make your programming fluent like your native language  :) Note: ALL IMAGES ARE FROM GOOGLE.
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Web Scraping : Urdu News

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Web scraping is an amazing method to collect data. Many data scientist use this method. I have scrape Urdu news . Urdu is difficult to scrape but thanks to Python and its libraries. Have a look at the code and outputs below:
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Habits to adopt in the freshman year

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We are what we repeatedly do. Excellence, then, is not an act but a habit. ~Aristotle Have you ever noticed? When you were a kid, your parents used to correct you all the time, whenever you did some mistake. Why did they do so? Because at that time you were growing at the conscience and the sub-conscience level. Your mind was setting some patterns at that time. And today, you are mostly acting out of those patterns. Your parents want great patterns for you, that's why they used to scold you at an early age. The patterns set at that time is what you repeatedly do and that is what we call, "the habit".  Similarly, when you are a fresher you could adopt certain habits that could make or break you in the long run. Every one of us wants to have constructive habits. so here are some habits that you could adopt as a fresher in order to function well in coming years... Habits to Have 1. Googling Search on google for difficult and different concepts. Make it your h...
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Five People to Follow on Social Media

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How many times you used to scroll Facebook, Instagram, Twitter, and other social media platforms? You always want to make your scrolling productive but after 2-3 hours you realize that you have wasted tons of your precious time.  so, if you want to make the best use of your social media time, then you can follow the following people, their posts are meant to give some worthy information. let's get started: Hisham Sarwar  Follow Hisham Sarwar for freelancing related information. Zeeshan Ul Hassan Usmani  Follow Zeeshan Ul Hassan Usmani for data science, artificial intelligence and, block-chain related stuff. Aman Dhattarwal  Follow Aman Dhattarwal for study and placement tips and tricks. Sandeep Maheshwari  Follow Sandeep Maheshwari for business strategies and motivational content. Qasim Ali Shah  Follow Qasim Ali Shah for study motivation as well as life lessons. Enjoy!
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Web Engineering : A Dialogue

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Down below web engineering is explained by using a dialogue between Mr. X and Mr.Y : X:  hi, Mr. Y do you know what is a web? Y: The thing a spider made....  X: oh not that one, let me tell you that!  A web is a platform where people from this whole world are connected. Like you said a spider web, it also shows the connection by connected, fragile spider silk strands. Y: But, why people needs to connect? X: They are connected because Man is a social animal so are the humans. And they need each other. They cannot live alone. They are dependent on each other for their day to day tasks. Y: Tasks like? X: Tasks like, if you want to make coffee and you don't know how to make it, what would you do ? Y: I will Google it.. X:  So that Googling is what you do to accomplish the task of making coffee by using web.. Y: Alright, so what's web engineering? X:  Well, first understand what is engineering. Engineering is to ...
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